Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2016

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Intangible Assets

The following is a summary of intangible assets at June 30, 2016 and December 31, 2015:  

	Estimated		June 30, 2016				December 31, 2015
	Life (Years)		Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Amortizable intangible assets:
Customer lists and contracts	7—10		$	553,265	$	483,733	$	513,832	$	477,006
Non-competition agreements	3—15			64,558		63,582		64,514		63,453
Site locations		15		1,839,513		1,286,650		1,616,345		1,251,825
Other	5—15			14,008		13,547		14,008		13,529
			$	2,471,344	$	1,847,512	$	2,208,699	$	1,805,813
Unamortizable intangible assets:
Goodwill			$	1,958,635	$	253,536	$	1,800,130	$	253,536